$ git clone -n https://git.cclinux.org/stage/rpms/grub2.git /mnt/compose/mock/dist-circle8-build-118279-80997/root/chroot_tmpdir/scmroot/grub2
Cloning into '/mnt/compose/mock/dist-circle8-build-118279-80997/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin 1ebb4517416ba5c27b806ac92d3a66e2f722bc29:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/grub2
 * [new ref]         1ebb4517416ba5c27b806ac92d3a66e2f722bc29 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ebb451 import grub2-2.02-156.el8